今天本打算测试无线充电demo板的功能和效率,参照http://www.ti.com.cn/cn/lit/ug/sluua44a/sluua44a.pdf的Test Set up,
结果一上电,悲剧发生了,电流异常大,估计烧了,仔细一看datasheet中
5.3.4 Meters
• Connect ammeter to measure 19-V input current to transmitter.
• Connect voltmeter to monitor input voltage at J1 and J2 of TX unit.
• On UUT, a voltmeter is used to measure output voltage at TP7 with ground at J4.
• Connect ammeter to measure load current.
这个非常误导人,请大家注意不要重蹈覆辙,尝试维修中。。。